HEAT TRANSFER PRODUCTS, INC.120 BRALEY RD., E. FREETOWN, MA 02717Installing, Operating & MaintainingMUNCHKIN™ HIGH EFFICIENCY HEATERwith the
10ELECTRICALThe electrical requirements are for standard 120 volts, 60 Hz 15 Amp service. This unit is wired with#18 awg and fused for no more than 15
11ELECTRICALNORMALLY OPENTTGROUNDBUSSWITCH JUNCTION BOX120V 60 HZELECTRICALSWITCH JUNCTION BOX120V 60 HZELECTRICALNORMALLY OPENTHERMOSTATCONNECTIONW
12GAS CONNECTIONPART 3. GAS CONNECTIONA. GAS CONNECTIONThe gas supply shall have a maximum inlet pressure of lessthan 14" water column (350 mm),
13WARNING Failure to follow all precautions could result in fire, explosion or death!GAS CONNECTIONIt is recommended that a soapy solution be used to
14VENTINGPART 4. VENTINGA. APPROVED VENTING MATERIALSExhaust Vent and Extensionsin Plastic 2", 3" and 4" Pipe Schedule 40 or 80.1. Non
15VENTINGB. VENTING THE MUNCHKINThe inlet pipe on the back of the cabinet should be 3" PVC schedule 40. It is very important that youplan the loc
16may require venting modifications (consult factory). The air inlet must be a minimum of 1'vertically above the maximum snow level. It is very i
17VENTINGFriction Loss Equivalent in Piping and FittingsFittings or Piping Equivalent Feet90 degree elbow = 545 degree elbow = 3Coupling = 0air inlet
VENTING18D. HEATER REMOVAL FROM A COMMON VENT SYSTEMAt the time of removal of an existing heater, the following steps shall be followed with each appl
19VENTING**IMPORTANT NOTE: All vent pipes must beglued, properly supported and the exhaust mustbe pitched a minimum of a ¼" per foot back tothe h
USING THIS MANUAL2SPECIAL ATTENTION BOXES Throughout this manual you will see thesespecial attention boxes similar to this one,which are intended to
VENTING20**IMPORTANT NOTE: All vent pipes must be glued, properly supported and the exhaust must be pitched aminimum of a ¼" per foot back to the
VENTING21**IMPORTANT NOTE: All vent pipes must be glued,properly supported, and the exhaust must be pitcheda minimum of a ¼" per foot back to the
22PIPINGPART 5. PIPING A. HYDRONIC PIPING WITH CIRCULATORS OR ZONE VALVES The Munchkin is designed to function in a closed loop 15 PSI System. To as
23PIPING8. Install an Air Elimination Device on the system supply.9. Install a drain valve at the lowest point of the system. Note: The Munchkin can n
24PIPINGC. FILL AND PURGE HEATING SYSTEM • Attach the hose to balance and purge hose connector or drain valve and run hose to near-est drain • Close t
25PIPINGPiping Symbol Legendcirculator (w/ isolation flanges)gate valveglobe valveball valveswing-check valveflow-check valvespring-loaded check valve
26PIPINGStandard Munchkin boilerRetrofit piping (zoning with valves)Space heating modeMunchkin boilerP1Super Storindirect DHW tankT/PDrawing 1Amake-up
27PIPINGStandard Munchkin boilerRetrofit piping (zoning with valves)Domestic water heating modeMunchkin boilerP1Super Storindirect DHW tankT/PDrawing
28PIPINGStandard Munchkin boilerPreferred piping (zoning with valves)Space heating modeMunchkin boilerP1Super Storindirect DHW tankT/PDrawing 2Amake-u
29PIPINGStandard Munchkin boilerPreferred piping (zoning with valves)Domestic water heating modeMunchkin boilerP1Super Storindirect DHW tankT/PDrawing
TABLE OF CONTENTS3TABLE OF CONTENTS PART 1 . . . . . . . . . . . . . . . . . . . . . .4 thru 8GENERAL INFORMATIONA How It Operates . . . . . . . . .
30PIPINGStandard Munchkin boilerPreferred piping (zoning with circulators)Space heating modeNOTES:1. This drawing is meant to show system piping conc
31PIPINGStandard Munchkin boilerPreferred piping (zoning with circulators)Domestic water heating modeMunchkin boilermake-up waterSuper Storindirect DH
32PIPINGStandard Munchkin boilerPreferred piping (multiple boilers / zoning with circulators)Space heating modeNOTES:1. This drawing is meant to show
PIPING33Standard Munchkin boilerPreferred piping (multiple boilers / zoning with circulators)Domestic water heating modeNOTES:1. This drawing is mean
34START-UP PROCEDURESPART 6. START-UP PROCEDURES A. SEQUENCE OF OPERATION1. When power is first applied to the control, the control display will read
35START-UP PROCEDURESthe room thermostat is connected and turn the room thermostat up above room temperatureto start the combustion blower fan to run
3612. If the appliance will not operate, follow the instructions “To Turn Off Gas To Appliance”Section E and call your service technician or gas suppl
37G. TEST MODEThis function is intended to simplify the gas valve adjustment if needed. Listed below are therecommended limits on each Munchkin Heater
38CAUTION This appliance has wire function labels on allinternal wiring. Observe the position of each wirebefore removing it. Wiring errors may cause
TROUBLESHOOTING39Table 7-1: 925 Control Board Error CodesedoCnoitpircseDydemeR00F.dedeecxEtimiLhgiH.1.2.3noitarepopmupnoitalucrickcehCehtgnisseccaybre
GENERAL INFORMATION4B. MUNCHKIN RATINGS AND DIMENSIONSPERFORMANCE RATINGS*Net waterCONNECTION SIZESledoMnoitaludoMtupnIgnitaeHEODEUFAthgieWgnippihSRBI
TROUBLESHOOTING40Boiler & Indirect Temperature (˚F) Resistance (ohms)32 3255041 2534050 1987059 1570068 1249077 1000086 805995 6535104 5330113 437
41MAINTENANCEPART 8. MAINTENANCEA. MAINTENANCE PROCEDURESPeriodic maintenance should be performed once a year by a qualified service technician to ass
42MAINTENANCED. COMBUSTION CHAMBER COIL CLEANING INSTRUCTIONS**Before beginning this procedure, you must have on hand the following items:– a nylon, s
MAINTENANCE43CONTROL WIRING LAYOUTFig. 8-1*There is a spare 6.3 amp “slow blow” fuse included on the control cover. HTP p/n 7250-378 oryou may purchas
MAINTENANCE44
MAINTENANCE45
NOTES46
NOTES47
SuperStor Ultra, SuperStor, Voyager, Voyager Sanitizer, and Everlast are registered trademarks of Heat Transfer Products, Inc.Munchkin R1© 2004 Heat T
GENERAL INFORMATION5Figure 1-1(NOTE: The Munchkin is rated atzero clearance to combustibles.)80M/140M/199MT50M/T80MRECOMMENDED SERVICE CLEARANCESFigur
GENERAL INFORMATION6Figure 1-3T50M/T80MDIMENSIONS
GENERAL INFORMATION7DIMENSIONS80M140M/199MFigure 1-4Figure 1-5
GENERAL INFORMATION8C. PRE-INSTALLATION REQUIREMENTGENERAL 1. Munchkin Boilers are supplied complete-ly assembled as packaged boilers. Thepackage shou
GENERAL INFORMATION / ELECTRICAL9Note: Service clearance of the Munchkin: See Section 1, Figures 1-1 and 1-2.If the Munchkin is set up for liquefied p
Comments to this Manuals